Funai DCVR-7830D, DBVR-7730D Service Manual
SECAMPAL
SERVICE MANUAL
DVD PLAYER &
VIDEO CASSETTE RECORDER
DPVR-7630D
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded views
I Parts List
When servicing the deck
mechanism, re fer to MK14 Deck
Mechanism Section.
Deck Mechanism Part No.:
N25E0FL
PAL
DCVR-7830D
DBVR-7730D
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
DPVR-7630D/DCVR-7830D/DBVR-7730D
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Laser Beam Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Electrical Adjustment Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
How to Initialize the DVD Play er & VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Wiring Diagram < VCR Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Wiring Diagram < DVD Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-2
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Lead Identifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Parts L ist
Manufactured under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
1-1-1 E8B00SP
SPECIFICATIONS
< VCR Section >
Note: Nominal specs represent the design specs. All units should be able to approximate these – some will
exceed and some may drop slightly below these specs. Limit specs repres ent the absolute worst condi tion that
still might be considered acceptable; In no case should a unit fail to meet limit specs.
Description Unit Minimum Nominal Maximum Remark
1. Video
1-1. Video Output (PB) Vp-p 0.8 1.0 1.2 SP Mode
1-2. Video Output (R/P) Vp-p 0.8 1.0 1.2
1-3. Video S/N Y (R/P) dB 40 45
SP Mode,
W/O Burst
1-4. Video Color S/N AM (R/P) dB 37 41 SP Mode
1-5. Video Color S/N PM (R/P) dB 30 36 SP Mode
1-6. Resolution (PB) Line 230 245 SP Mode
2. Servo
2-1. Jitter Low µsec 0.07 0.12 SP Mode
2-2. Wow & Flutter % 0.3 0.5 SP Mode
3. Normal Audio
3-1. Output (PB) dBV -9 -4 -3 SP Mode
3-2. Output (R/P) dBV -9 -4 -1.5 SP Mode
3-3. S/N (R/P) dB 36 41 SP Mode
3-4. Distortion (R/P) % 1.0 4.0 SP Mode
3-5. Freq. resp (R/P) at 200Hz dB -6 -2 SP Mode
(-20dB ref. 1kHz) at 8kHz dB -8 -2 SP Mode
4. Tuner
4-1. Video output Vp-p 0.8 1.0 1.2 E-E Mode
4-2. Video S/N dB 39 44 E-E Mode
4-3. Audio output dB -10 -6 -2 E-E Mode
4-4. Audio S/N dB 40 46 E-E Mode
5. Hi-Fi Audio
5-1. Output dBV -12 -9 -4 SP Mode
5-2. Dynamic Range dB 70 85 SP Mode
5-3. Freq. resp (6dB B.W) Hz 20 ~ 20K SP Mode
1-1-2 E8B00SP
< DVD Section >
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : 220 - 240 V ~ 50 Hz
3. Ambient temperature : 5
°C ~ 40 °C
ITEM CONDITIONS UNIT NOMINAL LIMIT
1. Video Output 75 Ω load Vpp 1.0 ± 0.1
2. Optical Digital Out dBm -18
3. Audio (PCM)
3-1. Output Level 1 kHz 0 dB, 47k Ω load Vrms 2.0
3-2. S/N 47k Ω load dB 90
3-3. Freq. Response
DVD fs = 48 kHz ± 0.5dB, 47k Ω load Hz 20~22 k
CD fs = 44.1 kHz ± 0.5dB, 47k Ω load Hz 20~20 k
3-4. THD+N
DVD 1 kHz 0dB, 47k Ω load % 0.01
CD 1 kHz 0dB, 47k Ω load % 0.01
1-2-1 E6P_LASER
LASER BEAM SAFETY PRECA UTIONS
This DVD player uses a pickup that emits a laser beam.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Location: Top of DVD mechanism.
Do not look directly at the laser beam coming
from the pickup or allo w it to strike a gainst y our
skin.
Drive Mechanism
Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION- CLASS
1M
LASER RADIA
-
-
TION WHEN OPEN. DO NOT VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS
1-3-1 DVD_SFNP
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristic s which are often not evident from visual inspection, nor can the protection
they give necessarily be obtained by replacing them
with components rated for higher voltage, wattage,
etc. Parts that have special safety cha racteristics are
identifi ed b y a ! on schematics and in parts lists. Use
of a substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might create shock, fire, and/or other
hazards. The Product’s Safety is under review continuously and new instructions are issued whenever
appropriate. Prior to shipment from the factory, our
products are carefully inspected to confirm with the
recognized product safety and electr ical codes of the
countries in which they are to be sold. However, in
order to maintain suc h c omp li anc e, it is equally imp or tant to implement the following precautions when a set
is being serviced.
Precautions during Servicing
A. Parts identified by the ! symbol are critical for
safety. Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spur ious radiati on. Thes e must also be
replaced only with specified replacements.
Examples: RF converter s, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1)Wires covered with PVC tubing
2)Double insulated wires
3)High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1)Insulation tape
2)PVC tubin g
3)Spacers
4)Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before soldering.
F. Observe that the wires do no t contact heat produc-
ing parts (hea tsinks, oxide metal film resi stor s, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replac ed, check that
5 - 6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. Crimp type wire connector
The power transformer uses crimp type connectors
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insu lation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the complet e closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconne ct the AC plug from the
AC outlet.
1-3-2 DVD_SFNP
Chassis or Secondary Conductor
Primary Circuit
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
B
One side of
Power Cord Plug Prongs
Z
Safety Check after Servicing
Examine the area surrounding the repaired location
for damage or deterioration. Observe that screws,
parts, and wires have been returne d to their original
positions. Afterwards, do the following tests and confirm the specified values to verify compliance with
safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distanc e (d) and (d’) between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Curren t Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs)
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Po wer ON) :
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across t he ter minals of l oad
Z. See Fig. 2 and the following table.
AC Line Voltage Clearance Distance (d), (d’)
220 to 240 V
≥ 3 mm(d)
≥ 6 mm(d’)
Table 2: Leakage current ratings for selected areas
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Load Z Leakage Current (i)
One side of power cord plug
prongs (B) to:
220 to 240 V
2kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
RF or
Antenna terminals
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
A/V Input, Output
Fig. 1
Fig. 2
1-4-1 DVD_NOTE
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regu lator ICs is indicated as shown.
2. F or other ICs, pin 1 and every fifth pin are indicated
as shown.
3. The 1st pin of every male connec to r is ind icated as
shown.
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect
the AC cord.
2. FFC (Flexible Foil Connector) cable should be
inserted parallel into the connector, not at an angle.
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:.
(1)Prepare the hot-air flat pack-IC desoldering
machine, then apply hot air to the Flat Pack-IC
(about 5 to 6 seconds). (Fig. S-1-1)
(2)Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire fl at pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. Do not supply hot air to the chip p arts around the
flat pack-IC for over 6 seconds because damage to
the chip parts may occur. Put masking tape around
the flat pack-IC to protect other parts from damage.
(Fig. S-1-2)
Top View
Out
In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Fig. S-1-1
1-4-2 DVD_NOTE
3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when removing
it.
With Soldering Iron:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use sol der flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(2) Lift each lead of the flat pack-IC upward one by
one, using a sharp pi n or wire to which solder will
not adhere (iron wire). W hen heating th e pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire fl at pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use sol der flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
(3) While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
1-4-3 DVD_NOTE
(4)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to c ente r o f the fl at p ack-IC and h eat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5)Release the flat pack-IC from the C BA us ing twee -
zers. (Fig. S-1-6)
Note:
When using a solder ing iron, care must be taken
to ensure that the flat pack-IC is not be ing h eld by
glue. When the flat pack-IC is rem oved from the
CBA, handle it gentl y bec aus e i t m ay be dama ged
if force is applied.
2. Installation
(1) Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA
so you can install a repla cement flat pack-IC mo re
easily.
(2) The “ I” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be su re this mark m atches the 1
on the PCB when p ositioning for install ation. Then
presolder the four corner s of the flat pack-IC. (See
Fig. S-1-8.)
(3)Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
1-4-4 DVD_NOTE
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a groundi ng ban d (1MΩ) that is properly grounded to remove any static electric ity that may
be charged on the body.
2. Ground for Workbench
(1)Be sure to place a conductive sheet or copper plate
with proper grounding (1M Ω) on the wor kbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escap e through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.
CBA
< Incorrect >
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
< Correct >
1-5-1 E8BA0PFS
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start
and End Sensors on th is equipment. Carefully read
and follow the instructions below. Otherwise the unit
may operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Asse mbly and
press the PLAY button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, connect TP501 (S-I NH) to GND. This will stop
the function of Tape Start Sensor, Tape En d Sensor
and Reel Sensors. (If these T Ps ar e con nec ted before
plugging in the unit, the function of the sensors will
stay valid.) See Fig. 1.
Note: Because the Tape End Sensors are inactive, do
not run a tape al l t he way to the start or the end of the
tape to avoid tape damage.
Q504
Q503
TP501 S-INH
Fig. 1
1-6-1 E8B05DC
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchar t indi cates the di sass embly ste ps to ga in
access to item(s) to be ser vic ed. When re assembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.
2. Disassembly Method
Note:
(1):Identification (location) No. of parts in the figures
(2):Name of the part
(3):Figure Number for reference
(4): Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
(5):Refer to “Reference Notes.”
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
[1] Top Case D1 8(S-1) -
[2]
Front
Assembly
D2 *3(L-1), *3(L-2)
1
1-1
1-2
[3] Top Bracket D2 3(S-2) -
[4]
DVD
Mechanism
Assembly
D3
4(S-3), *CN401,
*CN601
-
[5]
Partition
Plate
D3 (S-4) -
[6]
Power
Supply CBA
D3 2(S-5), CN501 -
[7]
Loader
Holder
D3 2(S-6) -
[8]
DVD Main
CBA Unit
D4
2(S-7), *CN201,
*CN301
2
2-1
2-2
3
[1] T op Case
[2] Front Assembly
[3] T op Bracket
[4] DVD Mechanism Assembly
[8] DVD Main CBA Unit
[5] Partition Plate
[7] Loader Holder
[6] Power Supply CBA
[9] VCR Chassis Unit
[10] Deck Assembly
[11] DVD Open/Close CBA
[12] Power SW CBA [DBVR-7730D only]
[13] Main CBA
[14] Jack-A CBA
[9]
VCR
Chassis Unit
D5
5(S-8), 2(S-9),
(S-10A),
(S-10B)
[DBVR-7730D
only]
, (L-3)
-
[10]
Deck
Assembly
D6
Desolder,
2(S-11), (S-12)
4,5
[11]
DVD Open/
Close CBA
D6 Desolder -
[12]
Power SW
CBA
[DBVR-7730D
only]
D6 Desolder -
[13] Main CBA D6 ---------- [14] Jack-A CBA D6 Desolder, 6(S-13) -
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
1-6-2 E8B05DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Release three Locking Tabs (L-1).
1-2. Release three Locking Tabs (L-2), then remove
the Front Assembly.
CAUTION 2: Electrostatic breakdown of the laser
diode in the optical system block may occur as a
potential difference caused by electrostatic charge
accumulated on cloth, human body etc., during
unpacking or repair work.
To avoid damage of pickup follow next procedures.
2-1. Disconnect Connector (CN301). Remove a
Screw (S-7) and lift the DVD Main CBA Unit. (Fig.
D4)
2-2. Short the three short lands of FP C c a ble with sol-
der before removing the FFC cable (CN201) from
it. If you disconnect th e FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. D4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected compl etely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D4)
4. When reassembling, solder wire jumpers as shown
in Fig. D6.
5. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. D6. Then, install the Deck Assembly while
aligning the hole of Cam Gear wit h the pin of LDSW, the shaft of Cam Gear with t he ho le of LD-SW
as shown in Fig. D6.
Fig. D1
(S-1)
(S-1)
(S-1)
(S-1)
[1] T op Case
[2] Front
Assembly
(S-2)
(S-2)
[3] T op Bracket
Fig. D2
(L-1)
(L-1)
(L-2)
1-6-3 E8B05DC
(S-3)
(S-5)
(S-4)
(S-6)
CN501
CN401
CN601
(S-3)
(S-3)
[5] Partition Plate
[6] Power
Supply CBA
[7] Loader
Holder
[4] DVD
Mechanism
Assembly
Fig. D3
CN201
CN301
(S-7)
[8] DVD Main
CBA Unit
DVD Mechanism
A
Fig. D4
(S-7)
View for A
Short the three short lands by soldering.
(Either of two places.)
Connector
(S-8)
(S-9)
(S-9)
(S-8)
(S-8)
[DBVR-7730D
only]
(L-3)
[9] VCR Chassis Unit
Fig. D5
(S-10A)
(S-10B)
1-6-4 E8B05DC
(S-11)
Lead with blue stripe
Desolder
from bottom
(DBVR-7730D only)
(S-12)
(S-13)
(S-13)
(S-11)
[13] Main CBA
[14] Jack-A CBA
[10] Deck
Assembly
[11] DVD
Open/Close CBA
FE Head
Cylinder
Assembly
ACE Head
Assembly
Fig. D6
Desolder
Lead with
blue stripe
From
FE Head
BOTT OM VIEW
Lead connections of Deck Assembly and Main CBA
Desolder
From
Capstan
Motor
Assembly
Printing side
Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly
Lead with
blue stripe
Lead with
blue stripe
Desolder
Lead with
red stripe
[13] Main CBA
SW507
LD-SW
LD-SW
Pin
Hole
Hole
Shaft
Cam Gear
[13] Main CBA
[10] Deck Assembly
Pin
[12] Power
SW CBA
Desolder
Lead with blue stripe
1-6-5 E8B05DC
View for A
Rotate this roulette in
the direction of the arrow
A
DVD Mechanism
HOW TO EJECT MANUALLY
1. Remove the Top Case, Front Assembly and Top Bracket.
2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors.
3. While lifting up the DVD Mechanism, rotate the roulette in the direction of the arrow as
shown below.
4. Pull the tray slowly manually.
1-7-1 E8B05EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: "CBA" is an abbreviation for
"Circuit Board Assembly."
NOTE:
Electrical adjustments are required after replacing
circuit components and certain mechanical parts. It is
important to do these adjustments only after all repairs
and replacements have been completed. Also, do not
attempt these adjustments unless the proper
equipment is available.
1. Test Equipment Required
Alignment Tape (FL6A)
2. Head Switching Position
Adjustment
Purpose:
To deter mine the Head Switching position dur ing
playback.
Symptom of Misadjustment:
May cause Head Switching noi se or vertical jitter
in the picture.
Procedures:
1. Eject a tape and turn the power off.
2. To enter the service mode, press [CHANNEL K]
and [F.FWD] buttons on the unit simultaneously for
at least 2 seconds.
- The unit turn the power on in the service mode.
- Fig. E1 appears on the display.
3. Insert the Alignment Tape (FL6A).
Auto adjustment starts.
4. After short time, “OK” appears on the display and
auto adjustment completes.
Press [STOP] to cancel the auto adjustment mode.
5. Eject the Alignment Tape (FL6A).
3. To check/reset the initial function
setting
Preparation:
1. Enter the service mode.
2. Check the “0: FUNC SET” value (*1) in Fig. E1.
When the “0: FUNC SET” value is “038D” (DPVR7630D) or “038F” (DCVR-7830D) o r “038 C” (DBV R7730D):
1. To cancel the service mode, press [MENU] button
on the remote control.
2. If necessary, eject a tape.
3. To turn the power off, press [STANDBY-ON] button.
When the “0: FUNC SET” value is not “038D”
(DPVR-7630D) or “038F” (DCVR-7830D) or “038C”
(DBVR-7730D):
1. To enter the initial function setting mode, press [0]
button on the remote control.
- Fig. E2 appears on the display.
2. Set the “0: FUNC SET” value at "038D" (DPVR7630D) or "038F" (DCVR-7830D) or "038C"
(DBVR-7730D) by using [K/L/{/B (up/down/left/
right)] buttons on the remote control.
3. To return to the service mode, press [STOP] button
on the unit.
4. To cancel the service mode, press [MENU] button
on the remote control.
5. If necessary, eject a tape.
6. To turn the power off, press [STANDBY-ON] button.
7. To reset the unit, press [CHANNEL K] and [REW]
buttons on the unit simultaneously for at least 2
seconds.
1 : SW P AUTO
3 : SW P MANU
0 : FUNC SET
**
--
0***
"*" or "-" differs depending on the models.
Fig. E1
*1
1 : SW P AUTO
3 : SW P MANU
0 : FUNC SET 0***
0---
"*" or "-" differs depending on the models.
Fig. E2
1-8-1 E8BA0INT
HOW TO INITIALIZE THE DVD PLAYER & VCR
To put the program back at the factory-default,
initialize the DVD player & VCR as the following
procedure.
< DVD Section >
1. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. a appears on the screen.
2. Press [CLEAR] button on the remote control unit.
Fig. b appears on the screen.
When “OK” appears on the screen, the factory
default will be set.
3. To exit this mode, press [STANDBY-ON] button.
MODEL : *******
Version
: *.**
Region
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. a
"
*******
" differs depending on the models.
MODEL : *******
Version
: *.**
Region
: *
EEPROM CLEAR : OK
EXIT: POWEREEPROM CLEAR : CLEAR
"
*******
" differs depending on the models.
Fig. b
1-9-1 E8B05FW
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray.
2. To put the DVD player into version up mode, press
[DVD], [9], [8], [7], [6], and [SEARCH MODE]
buttons on the remote control unit in that order.
The tray will open automatically.
Fig. a appears on the screen and Fig. b appears
on the VFD.
The DVD player can also enter the version up
mode with the tray open. In this case, Fig. a will be
shown on the screen while the tray is open.
3. Load the disc for version up.
4. The DVD player enters the F/W version up mode
automatically. Fig. c appears on the screen and
Fig. d appears on the VFD. If you enter the F/W for
different models, “Disc Error” will appear on the
screen, then the tray will open automatically.
The appearance shown in (*1) of Fig. c is
described as follows:
5. After programming is finished, the tray opens
automatically. Fig. e appears on the screen and
the checksum in (*2) of Fig. e appears on the VFD
(Fig. f).
At this time, no button is available.
6. Remove the disc on the tray.
7. Unplug the AC cord from the AC outlet. Then plug
it again.
8. Turn the power on by pressing the [ST ANDBY-ON]
button and the tray will close.
9. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. g appears on the screen.
No. Appearance State
1 Reading... Sending files into the memory
2 Erasing... Erasing previous version data
3 Programming... Writing new version data
F/W Version Up Mode Model No : *******
VERSION : *.**
Please insert a DISC
for F/W Version Up.
EXIT: POWER
"
*******
" differs depending on the models.
Fig. a Version Up Mode Screen
Fig. b VFD in Version Up Mode
VERSION : ************.abd
Reading...
F/W Version Up Mode Model No : *******
VERSION : *.**
Fig. c Programming Mode Screen
"
*******
" differs depending on the models.
(*1)
Fig. d VFD in Programming Mode (Example)
VERSION : ************.abd
Completed
SUM : 7ABC
F/W Version Up Mode
Model No : *******
VERSION : *.**
"
*******
" differs depending on the models.
Fig. e Completed Program Mode Screen
(*2)
Fig. f VFD upon Finishing the Programming Mode (Example)
MODEL : *******
Version
: *.**
Region
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
"
*******
" differs depending on the models.
1-9-2 E8B05FW
10. Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
11. To exit this mode, press [STANDBY-ON] button.
MODEL : *******
Version
: *.**
Region
: *
EEPROM CLEAR : OK
EXIT: POWEREEPROM CLEAR : CLEAR
"
*******
" differs depending on the models.
Fig. h
1-10-1 E8BA0FIS
FUNCTION INDICATOR SYMBOLS
Note:
If a mechanical ma lfunction occurs, the power is tur ned off. When the power comes on agai n after that by
pressing [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds.
TV screen
When reel or capstan mechanism is not functioning
correctly
When tape loading mechanism i s not functioning correctly
When cassette loadi ng mechanism is not functi oning
correctly
When the drum is not working properly
P-ON Power safety detection
MODE INDICATOR ACTIVE
When reel or capstan mechanism is not
functioning correctly
“A R” is displayed on a TV screen. (Refer to Fig. 1.)
When tape loading mechanism is not functioning correctly
“A T” is displayed on a TV screen. (Refer to Fig. 2.)
When cassette loading mechanism is not
functioning correctly
“A C” is displayed on a TV screen. (Refer to Fig. 3.)
When the drum is not working properly
“A D” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON Power safety detection
“A P” is displayed on a TV screen. (Refer to Fig. 5.)
A
R
Fig. 1
A
T
Fig. 2
A
C
Fig. 3
Fig. 4
A
D
A
P
Fig. 5
1-11-1
BLOCK DIAGRAMS <VCR SECTION>
Servo / System Control Block Diagram
E8B05BLS
11KEY-1
33
POWER-LED
CN509
D651
CN508
AL+5V
POWER SW CBA
POWER
SW651
POWER
M
LOADING
MOTOR
CAPSTAN MOTOR
CONTROL
HEAD
CN504
ACE HEAD ASSEMBLY
MAIN CBA
KEY- 1
POWER-LED
ST-S
T-REEL
CTL(+)
RESET
REC-SAF-SW
CTL(-)
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL
TIMER+5V
S-REEL
PS502
TP502
KEY- 2
IIC-BUS SDA
IIC-BUS SDA
IIC-BUS SCL
AUDIO-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
OUTPUT-SELECT
AUDIO-MUTE-H
Hi-Fi-H-SW
A-MODE
H-A-COMP
V-ENV
P-ON-H
C-POW-SW
P-ON-H
C-POW-SW
P-DOWN-H
P-DOWN-H
OUTPUT-SELECT
SW506
TO VIDEO
BLOCK DIAGRAM
TO Hi-Fi AUDIO
BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
SDA
SCL
IC502 (MEMORY)
IIC-BUS SCL
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
INPUT-SELECT
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
DVD-POWER
C-SYNC
INPUT-SELECT
DVD-POWER
C-SYNC
OUTPUT-SELECT
IIC-BUS SCL
LD-SW
AL+5V
AL+5V
SW507
LD-SW
AL+5V
D555
S-LED
TO POWER
SUPPLY BLOCK
DIAGRAM
TP501
Q507
SENS-INH
IC501
(SERVO/SYSTEM CONTROL)
LINE-MUTE
LINE-MUTE
5
6
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL
TP503
CTL
TO DVD SYSTEM
CONTROL /SERVO
BLOCK DIAGRAM
<DVD SECTION>
TO DVD VIDEO/
AUDIO BLOCK
DIAGRAM
<DVD SECTION>
CN502
C-FG
C-CONT
D-PFG
C-F/R
LM-
FWD/REV
D-CONT
AL+20.5V/+12V
AL+12V(2)
P-ON+15V
P-ON+5V
58
41
82
6
17
16
13
15
18
33
71
72
21
KEY SWITCH
KEY SWITCH
CYLINDER ASSEMBLY
DRUM
MOTOR
PG
SENSOR
M
OUTPUT-SELECT
OUTPUT-SELECT
M
CAPSTAN
MOTOR
MOTOR
DRIVE
CIRCUIT
REMOTE-VIDEO
TO DVD SYSTEM
CONTROL /SERVO
BLOCK DIAGRAM
<DVD SECTION>
DRV-DATA
DRV-STB
DRV-CLK
DISPLAY-DATA
DISPLAY-STB
DISPLAY-CLK
68
69
70
Q508
Q509
DVD-LED
VCR-LED
D503
VCR
D502
DVD
AL+5V
D505
POWER
1 CTL(-)
2 CTL(+)
1
AL+20.5V/+12V
2
P-ON+5V3C-FG4C-F/R5C-CONT6GND7LM-FWD/REV
8
D-CONT9D-PFG10GND11AL+12V(2)12P-ON+15V
8778768177
90
666732
28
86
19
83
14
30
29
8
7
23
97
31
34
79
80
4
109495
9
REMOCON-IN
B
TRICK-H
SECAM-H
TRICK-H
SECAM-H
61
65
A,B
Comparison Chart of
Models & Marks
Model Mark
DPVR-7630D
DBVR-7730D
DCVR-7830D
A
C
B
C
1-11-2
Video Block Diagram
E8B05BLV
IIC-BUS SDA
IIC-BUS SCL
CYLINDER ASSEMBLY
VIDEO(R)-1
VIDEO-COM
VIDEO(L)-1
CN251
123
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FMAGC
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
V-ENV
H-A-COMP
H-A-SW
D-V-SYNC
RF-SW/C-ROTA
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
VIDEO(L)-2
VIDEO-COM
VIDEO(R)-2
456
TU701 (TUNER UNIT)
IC301
VIDEO SIGNAL PROCESS
/HEAD AMP
IC501 (OSD)
REC-VIDEO SIGNAL
SERIAL
DECORDER
485052
56
24
50
52
19
20
JK101
VIDEO-OUT1
VIDEO-IN1
61
63
969594
93
908988
87
CHARA.
INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
FRT
IN2
FRT
IN2
AGC
PR
R
Y
C
P
RPRP
EP
Y. DELAY
Y/C
MIX
+
21
7978
AGC
VXO
OSD
CHARACTER
MIX
FBC
1/2
58 59
65
2928
6968
46 43
84
83
71
62
70
D-REC-H
80
BUFFER
Q104
DVD
VCR
TP751
V-OUT
WF3
TP301
C-PB
WF2
VIDEO OUT
MAIN CBA
54
TP504
RF-SW
WF1
OUTPUT-SELECT
DVD-VIDEO
TO
SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
TO SERVO/SYSTEM
CONTROL BLOCK DIAGRAM
X301
4.43MHz
C-SYNC
C-SYNC
67
IC751
(OUTPUT SELECT)
4
3
5
11109
SW CTL
MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL
INPUT-SELECT
VIDEO-OUT2
8
VIDEO-IN2
8
10 10
JACK-A CBA
19
20
JK1402
VIDEO
-OUT2
VIDEO
-IN2
CN2017
CN2018
BUFFER
Q103
JK752
VIDEO
-IN
IC1404
(SW)
TO DVD
VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
55
COLOR
-IN
DVD
VCR
4
3
5
9
SW CTL
FRONT
B
Comparison Chart of
Models & Marks
Model Mark
DPVR-7630D
DBVR-7730D
DCVR-7830D
A
C
B
TRICK-H
SECAM-H
IC370 (PAL/SECAM DECTECTOR)
PAL/SECAM
DETECTOR
171418216
29
1
28
25
PB-H OUT
44
B
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